package com.hedy.user.service;


import dto.UserDTO;

public interface DemoService {
    public String greater(int a, int b, int c, int d);

    public String greaterOne(int a, int b, int c, int d);

    public String less(int a, int b, int c, int d);

    public String equal(int a, int b, int c, int d);
}
